Research, development and testing of the eco-efficient mortars for sustainable repair of surface layers of historic buildings: effect of natural organic additives and fibres

The dissertation focuses on the comprehensive research and development of eco-efficient mortars intended for the sustainable repair and restoration of surface layers of historical masonry, including heritage-protected buildings. The research aims to design mixtures with a minimised carbon footprint, incorporating natural and renewable raw materials such as plant- and animal-based fibres, as well as natural organic and inorganic additives and admixtures. These components will be selected regarding their material, technological, and functional compatibility with the original materials used in historical structures.

The experimental part of the work will investigate the effects of natural additives, admixtures, and fibre reinforcement on the microstructure, physical-mechanical properties, and durability of mortars. The obtained material parameters will be used for modelling the performance and behaviour of the designed mortars under varying thermal and moisture conditions of the environment and structure, including the influence of salt contamination and degradation processes.

The comprehensive research approach will enable the development of materials suitable for the sensitive restoration of historical buildings and deepen the understanding of structural, physical, and chemical phenomena occurring during their application in historical constructions.